今天
select * from 表名 where to_days(时间字段名) = to_days(now());
昨天
SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) <= 1
近7天
SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(时间字段名)
近30天
SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名)
本月
SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, '%Y%m' ) = DATE_FORMAT( CURDATE( ) , '%Y%m' )
上一月
SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , '%Y%m' ) , date_format( 时间字段名, '%Y%m' ) ) =1
查询本季度数据
select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(now());
查询上季度数据
select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(DATE_SUB(now(),interval 1 QUARTER));
查询本年数据
select * from `ht_invoice_information` where YEAR(create_date)=YEAR(NOW());
查询上年数据
select * from `ht_invoice_information` where year(create_date)=year(date_sub(now(),interval 1 year));
查询当前这周的数据
SELECT name,时间字段名FROM enterprise WHERE YEARWEEK(date_format(时间字段名,'%Y-%m-%d')) = YEARWEEK(now());
查询上周的数据
SELECT name,时间字段名FROM enterprise WHERE YEARWEEK(date_format(时间字段名,'%Y-%m-%d')) = YEARWEEK(now())-1;
查询上个月的数据
select name,submittime from enterprise where date_format(submittime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m')select * from user where DATE_FORMAT(pudate,'%Y%m') = DATE_FORMAT(CURDATE(),'%Y%m') ; select * from user where WEEKOFYEAR(FROM_UNIXTIME(pudate,'%y-%m-%d')) = WEEKOFYEAR(now()) select * from user where MONTH(FROM_UNIXTIME(pudate,'%y-%m-%d')) = MONTH(now()) select * from user where YEAR(FROM_UNIXTIME(pudate,'%y-%m-%d')) = YEAR(now()) and MONTH(FROM_UNIXTIME(pudate,'%y-%m-%d')) = MONTH(now()) select * from user where pudate between 上月最后一天 and 下月第一天
查询当前月份的数据
select name,submittime from enterprise where date_format(submittime,'%Y-%m')=date_format(now(),'%Y-%m')
查询距离当前现在6个月的数据
select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now();
查询每天每周每月每年的总数
查询每天的数据：
SELECT COUNT(1) AS countNumber, DATE_FORMAT(createTime,'%Y-%m-%d') AS dateTimeFROM testTableGROUP BY DATE_FORMAT(createTime,'%Y-%m-%d')
查询每周的数据：
SELECT COUNT(1) AS countNumber, WEEK(createTime) as dateTimeFROM testTableGROUP BY WEEK(createTime)
查询每月的数据：
SELECT COUNT(1) AS countNumber, MONTH(createTime) as dateTimeFROM testTableGROUP BY MONTH(createTime)
查询每年的数据：
SELECT COUNT(1) AS countNumber, YEAR(createTime) as dateTimeFROM testTableGROUP BY YEAR(createTime)
其它：
DATE_ADD(createTime,INTERVAL 1 DAY) 得到指定日期后一天的日期/把1改为任意数字就可以得到后N天的日期
DATE_SUB(createTime,INTERVAL 1 DAY) 得到指定日期前一天的日期/把1改为任意数字就可以得到前N天的日期
声明变量查询：
SET @counter=0;
select :=@counter+1 as id,count(*) as num FROM testTable ORDER BY num desc去重选择后返回条数
SELECT COUNT(DISTINCT(id)) from 数据表 WHERE createdDate BETWEEN '2009-08-06 15:53:14' AND '2009-09-01 15:53:14'
查出第几周到第几周的区间数据:
SELECT COUNT(DISTINCT(id)) ,WEEK(date_format('2009-08-05 15:53:14','%Y-%m-%d'),1) AS startweek,WEEK(date_format('2009-08-06 15:53:14','%Y-%m-%d'),1) AS endweekfrom 数据表WHERE WEEK(date_format(createdDate,'%Y-%m-%d'),1)BETWEEN WEEK(date_format('2009-08-05 15:53:14','%Y-%m-%d'),1) AND WEEK(date_format('2009-08-06 15:53:14','%Y-%m-%d'),1); 多表关联查询:
SELECTCOUNT(DISTINCT(account)) as fuNum, op.*,p.*from A oLEFT JOIN B opON o.id = op.idLEFT JOIN C pON op.id = p.idWHERE WEEK(date_format(createdDate,'%Y-%m-%d'),1)BETWEEN WEEK(date_format('2009-08-05 15:53:14','%Y-%m-%d'),1) AND WEEK(date_format('2009-08-06 15:53:14','%Y-%m-%d'),1)AND id = 3 函数查询求和:
SELECTCOUNT(DISTINCT(op.a)) as pa, COUNT(p.b) AS sa,SUM(o.c) AS tafrom A oLEFT JOIN B opON o.id = op.idLEFT JOIN C pON op.id = p.idWHERE WEEK(date_format(createdDate,'%Y-%m-%d'),1)BETWEEN WEEK(date_format('2009-08-05 15:53:14','%Y-%m-%d'),1) AND WEEK(date_format('2009-08-06 15:53:14','%Y-%m-%d'),1)AND id = 3 嵌套查询:
SELECTDISTINCT(CASE accountWHEN '0' THEN 'null'ELSE (SELECT COUNT( DISTINCT(account) ) FROM eps_order WHERE payStatus = 'paid') END) AS payNum,COUNT(p.`order`) AS saleOrders,SUM(o.amount) AS totalAmountfrom A oLEFT JOIN B opON o.id = op.orderIDLEFT JOIN C pON op.productID = p.idWHERE WEEK(date_format(createdDate,'%Y-%m-%d'),1)BETWEEN WEEK(date_format('2009-08-05 15:53:14','%Y-%m-%d'),1) AND WEEK(date_format('2009-08-06 15:53:14','%Y-%m-%d'),1)AND o.`status` != 'canceled'AND productID = 3 多重嵌套查询:
SELECTDISTINCT(CASE o.accountWHEN NULL THEN 'null'ELSE (SELECT COUNT( DISTINCT(o.account) ) from A oLEFT JOIN B opON o.id = op.orderIDLEFT JOIN C pON op.productID = p.idWHERE WEEK(date_format(createdDate,'%Y-%m-%d'),1)BETWEEN WEEK(date_format('2009-08-05 15:53:14','%Y-%m-%d'),1) AND WEEK(date_format('2009-08-06 15:53:14','%Y-%m-%d'),1)AND o.`status` != 'canceled'AND productID = 3) END) AS payNum,COUNT(p.`order`) AS saleOrders,SUM(o.amount) AS totalAmountfrom A oLEFT JOIN B opON o.id = op.orderIDLEFT JOIN C pON op.productID = p.idWHERE WEEK(date_format(createdDate,'%Y-%m-%d'),1)BETWEEN WEEK(date_format('2018-08-05 15:53:14','%Y-%m-%d'),1) AND WEEK(date_format('2018-08-06 15:53:14','%Y-%m-%d'),1)AND o.`status` != 'canceled'AND productID = 3